Fig. 2

Markov chain Monte Carlo Bayesian phylogenetic trees of GII.P12 and GII.3 strains. a Trees were reconstructed using 144 partial RdRp nucleotide sequences of GII.P12 strains (780nt). b Trees were reconstructed using 163 full VP1 nucleotide sequences of GII.3 strains. The GII.P12 and GII.3 strains in the RdRp and VP1 trees are colored according to their capsid and polymerase genotype, respectively. Phylogenetic clustering is indicated by colors and names. Scale bar is actual time (years). The numbers after the decimal point at the node mean indicated average number of days per month, which is multiplied by 365 and further divided by 30 to determine the month